Beginning with the first numerical simulations conducted by Colgate and White[1], three decades of supernova modeling have established a basic supernova paradigm. The supernova shock wave—formed when the iron core of a massive star collapses gravitationally and rebounds as the core matter exceeds nuclear densities and becomes incompressible—stalls in the iron core as a result of enervating loss...

The Department of Energy’s National Nuclear Security Administration (DOE/NNSA) seeks revolutionary innovations with respect to miniature seismic sensors for the monitoring of nuclear detonations. Specifically, the performance specifications are to be consistent with those obtainable by only an elite few products available today, but with orders of magnitude reduction in size, weight, power, and...

We present a numerical investigation of the tidal disruption of white dwarfs by moderately massive black holes, with particular reference to the centers of dwarf galaxies and globular clusters. Special attention is given to the fate of white dwarfs of all masses that approach the black hole close enough to be disrupted and severely compressed to such extent that explosive nuclear burning can be...

Thanks to the long-term collaborations between nuclear and astrophysics, we have good understanding on stellar nucleosynthesis, except for elements around Ti some neutron-capture elements. From comparison observations Galactic chemical evolution models, it is necessary rapid process associated with core-collapse supernovae, although explosion mechanism unknown. The impact of rotating massive st...

structural health monitoring of cracked structures is one of beloved subject of researchers recently. consider of crack behavior in the water and energy pipeline is important because of environmental problems. in this paper consider of crack parameters in the underwater pipe subjected to mechanical transient load is investigated. for this purpose, three- dimensional parametric model of cracked ...

The ultimate barrier to prevent contamination of the environment due a release radioactivity from Nuclear Power Plant (NPP) is reinforced concrete (RC) Reactor Building (RB) which encloses nuclear reactor. integrity this main focus Probabilistic Risk Assessment (PRA)-Level 2, in accident scenarios that might affect are modeled terms their consequences and probabilities occurrence. Traditionally...